QProcess调用外部程序，想让它在Dos窗口中运行，却不成功 [复制链接]

#include <iostream>
#include <cstdlib>
using namespace std;
int main(int argc, char **argv)
{
    cout << "Hello world" << endl;
    system("pause");
    return 0;
}

#include <QtCore>

int main(int argc, char **argv)
{
    QCoreApplication app(argc, argv);
    QProcess::startDetached("test18.exe");
    return app.exec();
}